Envelop-making machine.



E. P. SHELDON.

' ENVELOP MAKING MAGHINE.

Ru. l 9 1 nu, 2 Hm a ld d ou .Tu n e t n@ P n 0 9 1 8| 2 B. E E D E L I T.. N o I T A .HV I L P P A I 0 o0 0 2 1L l l 11 SHEETS-SHEET l.

'EL P. SHELDON.

BNVELOP MAKING MACHINE.

APPLICATION FILED 11:12.28, 1907.

Patented Jan. 26, 1915.

11 SHEETS-SHEET 2.

E. P. SHELDUN.

ENVELOP MAKING MACHINE. APPLICATION FILED PBB.28,1907.

Patented J an; 26, 1915.

11 SHEETS-SHEET 3. L Z S E. P. SHBLDON.

ENVELOP MAKING MACHINE.

APPLICATION FILED rBB.2,19o7.

Patented M1126, 1915.

11 SHEETS-SHEET 4.

E. P. SHELDON. ENVELOP MAKING MACHINE. APPLICATION FILED FBB.2a,19o7.

Patented 53u12@ 1915.

11 SHEETS-SHEET 5.

E.P.SHELD0N. ENVELOP MAKING MACHINE.

APPLICATION ILED FEB-28, 1907.

Patented Jan. 26, 1915.

11 SHEETS-SHEET e.

y fuis vy E. PL SHELDON.

.7. Ew N1 I, MM AB. ME GP.. Nm I KM AF MN P0 0U :HA Vm N P. ED.. A

Patented Jan. 26, 1915 11 SHEETS-SHEET 7.

T2. P. SHELDON.

ENVELOP MAKING MACHINE.

APPLICATION FILED IBB.28,1907.

Patented Jan. 26, 1915.

l1 SHEETS-SHEET 8.

.Km :N NON E. l. HELDON.

ENVELOP MAKING MACHINE.

APPLGATION FILED FEB.28,1907.

LQJD Patented Jan, 1915.

11 SHEETS-SHEET 9.

' yifjfy,

E. P. SHELDON.

ENvBLoP MAKING MAGHINE.

APPLICATION FILED IEB.28, 1907 yg Patentea 1311.26, 1915.

11 SHEETS-SHEET 10.

u www E. P. SHELDON.

ENVELOP MAKING MACHINE.'

APBLIGATION FILED Puma, 1907.

LLQJG., v Patented JaILZ, 1915.

11 SHEETS*SHEBT l1.

i [narran sfrafrns ra'raufr onirica.'

EDWARD P. SHELDN, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, T El.. HOE AND C0., OF NEW YORK, N. Y., A. CORBOR'ATION OF NEW YORK.

Elevator-MAKING Mncnrnn.

vSpeciircaton 'of Letters Patent.

Patented Jan. 26, 191 5.

Application filed February 28, 1907. Serial N o. 359,710.

To all whom it may concern Be it known that I, EDWARD a citizen of the United States, residing at New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Envelop-Making Machines, fully described and represented in the following speciiication and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in envelop machines.

The invention has in view the improvement of that class of envelop machines relating to the formation of envelops from a running web, and one of its objects is to improve the various mechanisms of that class of machines soY as to form the envelops more quickly and cheaply than heretofore.

More specifically considered, another object of the invention may be said to be the formation from a running web of ,an envelop which is provided with a detachable tongue or coupon which may be used forvarious purposes, such,for instance, as to enable a count to be made of the articles linclsed in the envelops.

The invention, furthermore, embraces certain improvements in the construction of the several parts of the machine,lall as will' be `hereinafter pointed out and more particularly specified in the claims.

Referring to the drawings 'Figure 1 is a side elevationv of a machine embodying the invention; Fig. 2 is a sectional side elevation on an enlarged scale of the printing mechanism employed and certain of the parts connected therewith. Figs. 3, 4 and 5 are side, plan and end views respectively ofthe Aspecific mechanism employed for operating the printing couple. Figs. 6 and 7 are detail views of a ratchet mechanism forming a part of the printing couple operating mechanism. Fig. 8 is a side elevation, partly in section, of the tongue forming cutter and its operating levers. Fig. 9 is a detail view of a shield employed in con nectionr with the tongue cutter die, and the operating mechanism therefor. Fig. 10 is a front elevation of the tongue cutter. ,Fig 11 is a' front elevation of a fold defining blade employed in connection with the tongue cutter. Fig.f 12 is a section on the line-1212mof` Fig. 11. vFig` 13 is a plan -view ofabportion of they web after it has P. SHnLDoN,

been acted on bythe tongue cutter and fold definlngl blade. Fig. 14 is a side elevation, partly in section, of the slitting, creasing,

, pasting and tongue. folding mechanisms, this view also showing the web turning and controlling means. Fig. 15 is a detail view of the cylinder which carries the tongue folding mechanism, said cylinder also coperating with the slitting and creasing mechanism. Fig. 16 .is an end view of the mechanism shown in Fig. 15, certain parts being'shown in section. Figs. 17 to 21 are diagrams illustrating the operation of the tongue folding mechanism. Fig. 22 is a plan view of theweb controlling and turning means. Fig. 23 is a section on the line 23 of Fig. Q2. Fig. 24 is ak longitudinal section of a partly folded envelop. Fig. 25 is a crosssection of the same. Fig. 26 is a detail sectional view of one of the edge turners illustrating itsA operation. Fig.` 27 is a plan view of. the end folding anddelivery mechanisms Aand parts connected therewith. j Fig. 28 is a sectional elevation of the construction shown in Fig. 27. Figs. 29 to 33 arediagrams illustrating .the operation of the end fold forming, creasing and pasting devices and the delivery mechanism.

Referring to the drawings which illustrate .one embodiment of the invention, the various mechanisms to be hereinafter described are mounted in side frames indicated at 1. The paper, in machines embodying the invention in its best form, will be supplied in the form of a web indicated at 1V, and the side frames of the machines are provided with brackets 2 in which the web roll 3 is supported. These brackets are provided with the usual means for adjusting the web roll endwise, these means being operated by a hand wheel indicated at 4. In

order to prevent the web roll from over-running underthepull of the web, the shaft of the roll may be provided with a pulley 5 with which coperates a brake shoe 6, this shoe being carried on a pivoted bent lever 7 and is adjusted by means of a. screw and hand-wheel 8.

Machines embodying the invention may be provided with continuously operating web feeding means which may be of any suitable construction. As shown, the web is fed between a. pair of rolls 9, 10,. the roll 10 being provided with a gear. 11, indicated in dotted lines in Fig. 1, which meshes with 4 13, the shaft being supported in bearingsk rising from the frame.y In thel particular-- a gea'i. 12 mounted on the main driving shaft construction shown, the roll 9 is mounted in spring bearings of the usual construction, these bearings being indicated atq14. Inasmuch as certain of the mechanisms hereinafter referred to are intermittently operated, the web is given an intermittent move- I ment througlrthe, machine and ythe continuously operating feeding mechanism Will,

therefore, produce slack in the web as is cylinders may be intergeared, as illustrated,

the sha`ft 16 being provided with a gear 19 and the shaft 18 with a/gear 20.

In the best constructions embodying the' `a frlction collar-48,`th1s c ollar having an eX-f invention, the cylinders will be given a continuous rotary movement. which this continuous rotary movement of the cylinders is effected may be varied Within wide limits.' In the particular construction illustrated, the shaft 18- (see Figi 3) is provided Wit a collar 21 `-Which is fast thereon. Tivo driving'gears 22, 23 are provided, these gears being loose on the shaft and being located on opposite sides'of'the A collar 21. The gear V22 carries a pair 'of pavvls 24, these pajvls being located ,in re-y cesses in the gear. These pavvls areimpelled` toward the`col-iar-by springs 25 which bear against a backing plate 26. The collar 21'A is provided with a pair of notches, indicated in dotted lines atV 27 in l`ig.7,l with which these paWls mayengage. The gear 23 is rovided withI a similar pair of pawls 28 i I lmpelled by springs 29 resting against a vbacking plate 30, the collar 21 being prorvided With notchesl 31 With which these pawls may engage. K

)articular construction illustrated, engaged y a rack 32 and the gear 23 is engaged by a. rack 33, these racks being pivoted ona 35. Thiscrank disk is provided with Ways in which is v"mounted a` slide/36, the pin 34 passing through 1a lhole in this slide andl` through a slot in the disk 35. The slide 36 is provided with a slot 37 which surrounds a bolt 33 by which the crankdisk 'is held/- to its shaft` 39,.' This constructionpermits slight adjustments of the pin-3.4inithe crank disk, thereby varying the amountlof itsec- The means by The gear 22 is in kthe centricity. The rack 33 has the opening inits hub slightly enlarged and is connected by screws 40 toi 'an arm 411' which' extendsfrom a hub 42 mounted on the pin 34 before referred to. This rack is also provided with .a threadedfcollar 43 inl Which Works a set` and that the pawls 24, `28 will kaltern'ately` engage the collar on the shaft 18 solas to' give this shaft av continuous rotation. i The cause thejpawls'28 to be accurately adjusted with respect to thenotches'vvith Whichthey ,1 1 f The shaft 18, in the particular construe#4 are to engage.

tion'y shown, is journaled-in 'the side Aframes and has its outer end `supported by a bracket rack 32 isl supported and guided-ina box guide 46'- hanging from the shaft '18 and the` adjustments referred to make it 'possibleto 45 secured to the frameV (see Fig'. ,5). The` rack-33 is supported and lguided in asimilar box shaft may' also,`--if desired, ybe provided With tension 49 which bears against the'vveb 50 of the bracket, this construction preventing guide`47 mounted on the shaft'18; The

the shaft from overthrowing under the 'op eration ofthe racks and lgears referred to.- I y The shaft 39,A Which carries the crank disk 35, may be driven by means of an interme# diate 51 from the gearl 12Vbe'fore' referred 52K fast on the shaft.- Y "l f The machine illustrated is constructed to to, this intermediate meshing Witha gear operate,if desired, on a double Wide Web.'`

The printing cylinder is, therefore, in this construction,y provided with 4meansfor car-y f rying two sets of printing-platesarranged side by side so as to deliver an impression* onV each lhalf of the web.'v The particularT construction by which ythe printing'platesg are held upon the cylinder is not, however, f essential to an understanding of the'present" v i invention and Will not, thereforeybespecifi' Acally described. It may be remarked, h'oW- ever, that the plates illustrated at 53 (AFigf-f' 2) cover only one-half of the'cylin'derand are held inposition by clips orplate holding devices -54 which' may-beof any yusual or desired construction;v Y -The ink may be supplied particularconstructionillustrated, there-is`-- i i provided ay largedistributing cylinder55 Itothe printing cylinder form rollers 57,

to" the printing l cylinder in any' eljesircdfmanner.l 'In' the* V with which coperate threedistributing f1' -V lrolls 56 `(see Fig, 1') of a suitable'type/,thev f 'ink from this cylinder 555 being transferred.v u...

means for mounting and operating these not, therefore, be specifically described, further than to say that the distributing cylinder 55 is driven through an intermediate 59 (see Fig. 2) which is in mesh with a gear onpthe cylinder4 and a gear on the shaft 18.

`The ink may be delivered to the cylinder 55 from a fountain 60 by means of a paWl operated fountain roll 61, (see dotted lines in Fig. 1)l and a ductor roll 62. The fountain ,and ductor lrolls may be operated, by connections not necessary to describe in detail,

as they are well-understood in the art, from a shaft 63 provided with a worm wheel 64 driven from a worm on the shaft of the continuously running feed roll 10.

If desired, a supplementary printing device may be employed, such, for instance, as a device for applying numbers to successive portions of the web, so that the resulting envelops will be numbered. While the mechanism of this supplementary printing device may be varied widely in construction, as shown, there is provided a shaft 65 which issupported in sliding spring controlled boxes 66 (see Fig. 2) suitably supported in the frame of the machine. This shaft is provided with a gear 67 which meshes with the gear 19 before referred to as on the shaft 16. The impression cylinder 15 is provided 1 at each end with rings or bearers 68, these v bearers being cut away opposite the point where the supplementary printer is to come into operation, as clearly shown in Fig. 2. The shaft is provided with a pair of disks 69 which coperate with these bearers. It is apparent that, as the cylinder 15 and the shaft 65 revolve, the shaft, owing to its sliding boxes, will beheld away from the surface of the cylinder except when it is permitted to move in by the cut away portion of the bearers. In the construction shown, the shaft 65 carries the supplementary printing device, such, for instance, as a numbering mechanism, indicated in dotted lines at 70. inasmuch as the particular construction of this supplementary printing device is not necessary to an understanding of the present invention, it will not be described in detail. The mechanism for supplyingink to this supplementary printing mechanism may be of any suitable construction. In the best constructions, however, as in the machine shown, this supplementary printer will derive its ink vfrom the same source as the forms on the. printing member of the couple. While this may be accomplished in various ways, as illustrated, that half of the printing cylinder which is not occupied by the forms will be provided with an ink carrying surface 71 which receives ink from the rollers 57, 58 before referred to as this portion of the cylinder passes them. This surface 71, therefore, forms a distributing surface by which ink is transferred to a. roller 72, this roller being mounted on a -shaft 73 suitably supported in bearings 74.

These bearings 74 mav have extending from them rods 75 which are surrounded bysprings 76, these rods passing through brackets 77 secured to the frame. The bearings 74 may be carried on bars 78 which are secured to half collars 79 surrounding a shaft 80, see dotted lines in Fig. 2. This shaft 80 may carry a coperating distributing roll 81, the shaft being provided with a gear 82 which meshes with a gear. 83 on the shaft 16, and being supported in suitable bearings in the frame. This roll 81 is in contact with a distributing roll 84 which delivers the ink directly to the supplementary printer. The roll 72 may be provided with bearers 85 which coperate with bearers 86 on the printing cylinder 17, so that the roll 72 is held away from the form surface or the cylinder.

Suitable cutting or incising mechanisms are employed to properly shape the web which is subsequently to be formed into blanks. When, as is the case in the maf chine illustrated, a double wide web is to be operated upon, the cutting mechanisms will be so constructed as to properly shape the web so that after it is divided longitu- T* dinally, it will .present duplicate blanks arranged side by side. When, further, as is the case in the machine illustrated, the envelops to be formed are to have tongues or coupons attached thereto, the cutting mechanisms will be properly constructed to form such tongues or coupons, which tongues or coupons, however, are to be distinguished from the tabs or fiaps at the sides or ends of the envelop which arex pasted and by which the envelop is secured together.

While the cutting mechanisms employed may be varied widely in construction, in the particular machine illustrated, there is provided a bed plate 87 which extends across the machine from side to side and is suitably supported in the side frames (see Fig. 10). This plate serves to support three die plates 88, 89, 90. The shape of these die plates and of the coperating cut- `ters will be understood froman inspection rounded studs 98 at its ends. These studs 98 areengaged byarms 99 (see Fig.8) fast on the shaft ,93, Extending from this shaft 93 is an operatingarm 100, vthis arm having 'connected1 to it a fork 1 01,` this fork straddling ,the Ishaft 39 t'v-liiclris the shaft before referred, to as carrying the crank'- dislr 35. The `fork has secured to it a-,roller 109J which cooperates with an operating cam 103 fast onthe shafty 391 vThe shaft 93.

is further provided y with .an arm 101 to which isconneeteta spring rod 105 (seeV Figs. 8 and 10) the purpose of whichis to hold the shaft in such l a position .that the roller 102 willrunin contact with the cam. 103. 'Theplunger .91.carries a head block 106 and to vthis head vblock is secured la steel y cutting block 107 corresponding in outline to the incision in theright handl side of the web as it appears in Fig. 13. Between this cutting block and the head is .located a wedgeshaped Ablock 108, the purpose o this block being to cause' one side ,of the cut-y ter block yto be lower thany the other,so that a shear cut is produced. .The plunger 2 5 carries ahead 109 to which is secured a cutter block 110 of theioutline of the lmiddle incision ofthe webl as it appears in Fig. 13, a wedge rshaped block 111 being introduced between the head block and cutter vblock to' produce a shear cut.l The plunger 96 vcar-Q ries ahead block 112 to which is, secured a, y

cutter block 113, thisy block corresponding in outline to the left hand incision of the web, as it appears in Fig. 13, a wedge shaped block v 1111 being interposed between y the,

block and head.

The cutting mechanism ljust. described is,

designed not only to shape theblanks but also to produce extensions (see Figg13). which are to form tongues o r coupons on the completed envelope, these tongues or coupons being, independent of thesecuring flaps with which the blanks are formed.

Further, in the particular machine shown,

these tongues or coupons are to b e folded against the web, so that they will'fbe inside the envelops when the same are completed.

If'desired', ythe line on which these tongues or coupons are to be yfolded may be dened, and this may be effected during the cutting may -bev accomplished 1n various ways, fthe heads 106, '109 operation` lVhile f thisy have l secured to` them perforating blades 115, these blades being held inposition by screws 116.. Thesescrews have collars 117 on them. betweenwhich and the heads the perforating blades are held.

Each perforating blade maybe provided with stripper plate and may .also have paper holding presser feetcoperating therewith. In the Construction illustrated,

the presser feet, marked 118, are carried on springs 119 whicn are located in sockets in bars 120. The stripper plates 121 are located between the bars 120 and the Derfe- .,117 before referred to. the bars 120 and l able meansv 'blocks' 1 to the, upper', ends of levers 12et,the pivots, -ot' the iblocks being marked: 12511 ySprings 126 Vmay be employed to keep the blades .e1

rating` bladesll. Theseplates 12.1 have,"

perforations which surround the collars feet come into operation.

The space between the web, after which the perforating blades form a line of perforations across the base of the extensions t. 0n the return movement, the knives and perforators move away .fromthe web, after which the presser feet and stripper blades retreat.

It will be understood, of course, thatthe' web is s .ta`.y tionary during Ithe operation of the cutting mechanism, and that its feedishresumed: y

after they cutting mechanism has operated i for preventing the cut edges of the ,web from the d ieblocks, as the web begins edge of v While this means its travel after cutting.`

f 1f desired, there may be employed suitycoming in vContact with the mayfbe varied in cnstruction, as shown,

two litters orl die shields are employed, one l for themiddle cutter and one for the cutter on the right lhand sideofthe Iwe b,asv

the sameisseenl in Fig. 1 3.y ln'theparticular construction, illustrated,these, lifterseachconsistof a blade 1,22 l(see Figs. 8 ,t

and 9), these bladesy being mountedyon i Y 23 which straddle and. are pivoted,

down against the die blocks. .The levers 124, as' shownl are pivoted on studsl'? y secured to brackets 128 depending frcmthe,

plate,87. These levers have ,connected .to them ,forks 129 ,provided with rollers ,130,

the outline of these forks ,bein'g'shown ,me f dotted lines in Fig. 8. The forlrsstraddla the shaft l39fbef v3re,referred to and the `rolls l1 10 130 run oncams 131 fast on the'. shaft. In f order to holdthe rollsf13'0,4 against the cams 131 asprmg rod construction`132,of a

usual type', is employed, lthe spring rods' being supportedy in hangers: 133 secured to, Vthe bed ,87. .The pivotal points ofthelevers 12a are so, arranged .with relation tomthe edgesof the die blocksr 88,89 that, as-the.

lit

litters move f,orward,.the edges of the blocks servel as fulcra and raise. thefblades 122` slightly, so as to lift-.the web slightly and thus `insurethat ,the'edges of the incisions will not catch the cutting edges of theidie'f blocks as the web `moves forward.l ,FiguQ- illustrates the, position of these lifters prior themiin their forward and operating position. l

't It has been explained that the web is statlonarv during the cutting operation, and

i to the time they move and Fig. 8 illustrates isc ` with it erations have also that will, just 1,1ae,aos

the printing couple is constantly rotating, and attention has also been called to the fact that the contii'iuously operating web feeding rolls by which the web is fed into the machine act, during the stoppage or' the web, to produce slack therein. Under these conditions, it is desirable to employ suitable means for preventing the web from being .pulled .forward by the continuously rotating impression member of the couple, around which the web passes. When a web holding means such as has been referred to is employed, the construction thereof may be varied within wide limits.

In the particular construction illustrated, there is employed (see Figs. l, 2 and 10) a set of tension bars 134, 135, l136 such as is common in web feeding constructions, and one of these bars is utilized as one member of the web holding means. As illustrated (see Fig. 2) the 'bar 134 has coperating a friction pad 137 mounted on a block 138 which is pinned to a fork 139 straddling the shaft 39 before referred to. This fork also lcarries a roll 140 which runs on a cam 141 mounted on the said shaft.'

In order to throw the pad quickly away from thebar134 when the tension is released, the block 138 has secured to it a pair of lugs 142 in which are mounted spring pins 143 entering sockets in the bar 136 (see Fig. 2). The cam 141 is so shaped that it before the cutters hereinbefore described come into operation, throw the fork forward and cause the pad 137 to press the web firmly against the bar 134. When the cutting is completed and the web is about to start forward, the roll 140 runs olf the high part of the cam and the fork is thrown quickly back by the spring pins 143, thus releasing the web and permitting its forward movement to be resumed.

It has already been stated that the particular machine herein illustrated operates to` form tongues or coupons in the web, which tongues or coupons are to lie inside the completed envelop. lhile the bending in of the tongues may be accomplished in various ways and at-any proper period in the `envelop forming operations, in the particular machine illustrated, the tongue bending means operates during the` travel of the web and directly after the cutting opbeen completed.` As shown, the tongue bending devices (see Figs. 14 to 21 inclusive) include a. roll 144, this roll being mounted on a shaft 145 which extends across the machine and is suitably mounted in the side frames.' This shaft has, in the machine shown', an intermittent movement effected through afgear 146 on the shaft, this gear being in mesh with an intermediate 147 mounted on `a stud on one of the side frames. This intermediate 147 is in shaft 167 5144, and at the lthe roll 169 is meshy with another intermediate 148 which derives its movement from a. gear 149 mounted on `a short shaft 150 suitably supported inthe machine. This shaft' 150 has fast thereon a collar 150 see dotted lines in Fig. 14) similar to the collar 21 before described and illustrated in Figs. 4 to 6 inclusive, except that this collar has pawl notches on one vside only, Loosely mounted on the shaft'l50 is a mutilated gear 151 which carries a pair of spring pawls 1 52, these pawls being similar to the spring pawls illustrated in Figs. 4 to 6 before referred to. The shaft 150 also supports a box guide 153 similar to the box guide 46 before described and illustrated in Figs. 3 and-5, this box guide supporting a rack 154 which is in mesh with the mutilated gear 151. This rack 154 is formed on a bar 155 (see Figs. 1 and 28) secured toa crank pin 156 on a crank disk 157. This crank disk 157 is mounted on a shaft 158 which carries a driving gear 159. rlhis driving gear is in mesh with a gear 160 which is in turn in mesh with an intermediate 161, this intermediate 161 being in mesh with the gear 52 before described as mounted on the shaft 39. l

The operation of the rack driving mechanism for the shaft 150 is similar to the mechanism for driving the shaft 18 before described except that the shaft 150 is not continuously rotated. In View of this fact, a fuller illustration of the details of the mechanism than is given is believed to be unnecessary.

Means may be provided to prevent the roll 144 from over-running at the end of the yintermittent movement imparted to it. This means may consist, as shown in Figs. 1 and 14, of a friction shoe 162 mounted on a level'l los 163, this lever being pivoted at 164 to a v28) extends back and carries a roll 166 which is operated from a cam 166 158.

The roll 4144 before referred to, in the particular machine illustrated, carries a which may be suitably journaled in the ends of the roll. Mounted on this shaft is a. pair of tongue bending plates 168 which may be of the configuration illustrated in the Various figures; As these tongue bending plates are duplicates, only oneof them is shown. The shaft 167 is provided with a crank arm 168 which carries a roller 169. As the web -passes over the roll proper time in its movement, operated by a cam 170 which rocks the shaft and throws the bending plate up and over. During this movement, the plates strike the tonguest and bend them down. The various positions of the on the shaft `bendingplates, the shaft and roll are wells shcwnin the diagrams Figs. 17 to 21, the

f first gure showing the position of a tongue recess which enables it'to be fitted on and'1 ,Means may be employed, i'f desired, for

before the shaft has been operated by the cam, and thelast figure showing the tongue bent down against the web. This operation,

it will be understood, is effected during the travel of the web. YThe cam'170fisf formed in one piece witha supporting plate 171 se-` cured to a roller guide172 by suitable screws,

formed on'a bracket sear 178 which forms .a part The `cam 170 has a` curved this; guide beingJ cured toa cross of the frame.

partially supportedy by the shaftl145 before referred to.f i

holdingithe web against the strain set up these means maybe of any suitable description, this result may beconveniently effected by means of two pairs of rollers 174 Whichf bear against-the web and the roll 144 at'the point where the tongue bending) operatiol A e mounte takes place. These rollers may on arms 175 which extend from a bar 176 extending across the'machine and support ed in the frame. y p

yThe particular machine illustrated employs 'creasing and pasting) mechanismsand y which the web The machine shown employs four creas ers, only three of which, however, 'are illustinted.A These creasers consist lof c1rcular blades 177 coperating with grooves 178,

formed in the roll 144. -v These circular l vcreasingblades are mounted on a shaft 179 supported in brackets 180 which are dropped from the bar 17 6 before referred t0.

The pasting mechanism employed may comprisel the usual pasting disks, one for each half ofthe web, only one of these disks,

181, "however being shown. Each of these disks may be provided with a cut-out portion, as 182, so that paste may not-be applied tothe roll 144 through the incisions in ythe web. Coperating with each disk is a fountain, only one fountain, 183, being shown. These fountains are secured to a cross-bar 184 which rests on brackets -185- formed on the main frame. In order to ad- -just the-fountains and to back them away from the web, if necessary, there may be` provided a shaft 186 provided with arms 187 which engage the bar 184 before referred to.y

The shaft 186 has secured to it an operating arm 188 which is positioned by means of two the tongue lbending operation. WhileV set screws 189, 190. The usual ldoctor blade 191 may be employed, this blade being lcon` trolled, as is common, by a set screw 192x The slitting mechanism may comprise a slitter disk 193 of usual construction, bthis' disk being 4mounted on a'hub 194 vandro-.f operatingwith' a groove 198 yinathe roll- 144. The slitter disk and'itshub' may .be

mounted on ashaft 195 supportedfin hang-y ers 196 depending from the'bar 176,'they '75 train of gearing n'ot necessary to illustrate?l shaft being driven, a's is usual, by a suitable Thebroken line s- (Fig. 13) --indicates the line on-whichthe slitter is to operate `andiit will .be-seen'th'a'tawhen the-'Web is thus'di-f vided it-isiconvertedl into two webs consist'- ingl of a series of envelop blanks,` the body portions of successive blanks being connect? ed-and eachbody portion having; a--lapof nearly the size ofthe body portion. f` i' .In the particular` machine illustrated, after slitting-each half of the web is given'a lon--l gitudinal' fold and bysubsequent operationsI is converted substantially into tube form.

The `mechanisms by which each half yof the web is' converted'into tube formare the same, and the illustration is,therefore,'conL half of the web. l l

The longitudinal foldingmechanismmay be varied in its construction. 'In thefparlinedto mechanism for operating up'on oneticularmachine shown,v it-includes see Figs. 14, 22'and 28) a turner which'ma'y consist of a bent wire'197 mountedin *a bracket 198,this bracket being securedv by a `screw 199-to abar QOOeXtending across' the incisions formed bythe cutting knives hereinbefore described andfolds whatniay f be termed the'liap portion, marked# vof the weby yover upon the lmain 'body ofthe web," l thismain body of the web 'being held po-l` sitionrby a former platei201 carried on a bracket 202'secured to a bar '203 extending across the machine, theflap portion of the' web turning over the edge "of, this,` plate which lies along one of thef creases already formedtherein.'`

Means maybe provided to control the'iiap'- f of the web as it turns and'inthe best con# struction, where such means isi er'1pl`oyed,l it

will be located', asin' the particular' 'machine the inturned tongue -,if themachine is" to produce envelo'ps having' 'such "tongues This controlling means, inthe 'particular shown, so as to Ipreventthe'opening out 'of' f machine' illustrated, consist'slo-fabent wire 204 secured toa bracket Q05 carriedon the 'bar 203 before referred to.' The particular machine illustrated is alsoprovidedwith a holding plate '206 which bears on the flap portion of the web, this plate being secured to the under side of the bar 208. The

vthe ymachine. The forward 'end' of-gthis turner extends down so a's'to enter one of* f to provide a narrow pasting Hap' 7.

1, radeon .l

function of this'plate is to prevent thev inturned tongue from springing up and unfolding.

Simultaneously with 'the turning over of' the flap portion f of the Vweb just described,-

the opposite edge ofthe Vwebv is, inthefpar-` ticular machine shown, given a narrow rold his is effected by means of a turner plate 207 (seeFig. 22) which is secured to and lies along the edge of al plate 208 which under-v lies the former 201. This vplate 208 is sup-y ported on the bar 173 before referred to and on another bar 209 which will be'hereim after described. l

Tt may be here remarkedthat the -creaser which defines the fold line of this pasting flap' f wilhas a rule, operate to'turn they dap upY somewhat and the forward end of the edge folder 207 is beveledsoV as to per-` mit the turned up edge to pass it. Thisk edge folder 207 has mounted upon it a second edge folder 210 which bendsdown the flap i', after which the folded edge of the web passes under a lip 211 formed on the vfolder 207, the operation being clearlyillusf trated in Fig. 26. This lip'holds the flap f firmly in position so that the flap f may fall uponit, as 'it is turned, the lip being made so narrow, however, that the edge of the flap f does not touch it. This flap f, it will be understood, carries a line of paste which has been applied to it by the pasting disk 1.81 before described. K

* A presser may be provided to assist in laying the fold produced by the turner 197.

. nthe machine illustrated, such a presser is employed, this presser, marked'212, being carried by a bar 213 mounted on the plate 208.

lt has been previously stated that the web isadvanced through the machine con` tinuously except during the time the cutting mechanism hereinbefore described is operating. The means employed for thus advancing the web may be widely varied in construction. In the particular machine shown, drawing rollers are employed for this purpose, there being two pairs of such rollers for each half of the web, the draw-l ing rollers for one part of the web only be'- -ing illustrated. As illustrated, the upper drawing rollers, marked 214, are mounted on a shaft 215.. These rollers coperate with lower drawing rollers 216 mounted on a shaft 217. The shaft 215 (see Fig. 28) is pro# vided with a dear 218 which is in mesh with a gear 2191 mounted on the'shaft 217. This gear 219 is in turn in mesh with an intermediate 220 which is in mesh with a 'secr ond intermediate 221 (see Fig. 14) driven by the gear 1419 onthe shaft 150 before re` As has been indicated, the drawferred to.

ing rollers 214, 216 act upon one half the web, the drawing rollers forthe other half of the web which are not shown being also mounted on the shafts 215, 217. It may be "remarked that the plate 208 before referred to is` cut away so as to permit the rolls 216 to'workthrough it.

The rolls 214 and 216y are arranged so as to bite on the folded web at the edges and thus not only forward the web but also opcrate to thoroughly crease the folds and insure theproper positioning of the flaps. To

.increase the bite of the rolls, the bracket 198 before referred to may be provided with 'a rearward extension 222, a screw 223 being tapped through a hole in this extension and caused to bear on the shaft 215 between the rolls through the medium of a shoe 224\(see dotted lines in F ig.` 28).

A pair of holding lingers 225 may, if desired, be employed to press on the folded Aweb between the rolls to assist in controlling the folded web both before and after it leaves the rolls. These fingers 225 may be secured in blocks 226 mounted on the bar 200 ybefore described.

The web has been, by the operations so 'far described, converted into a series of connected blanks, 4these blanks being so-shaped as to provide a plurality of envelops having la side seam, an infolded tongue and two end llaps, marked hand i respectively, (see Fig. 24), Vl'ay the furtheroperation of the par-v ticular machine shown, these blanks are severedv from each other, and the naps referred to turned over onto the body of the envelop, the flap t being also pasted.

The mechanism by which the blanks are severed may be varied `in construction. As shown (see Fig. 28), there is provided a cross-head 227 which moves in ways inthe machine frame. This cross-head has connected to it operating rods 228, one on each side of the machine, these operating rods passing through the cross-head and the cross-head being secured to them by means of bolts 229. These rods pass through guiding brackets 230 secured on the bar 209 before referred to and have connectedto them the upper ends of rods 231 (see Figs. 1, 10 and 28)', these rods 231 having their lower ends adjustably connected to stirrups which form the upper ends of forked rods 232. These forked rods straddle the shaft 39 before referred to and arelprovided with rolls 233 which run on cams`23/1 onfthe shaft 39.

Springs 235 hold the `rods and forks down l the knives by springs 238 socketed in the bar 209. The cross-head carries a series of depending ngers 239 which coact with these blades and prevent their moving under the stress of the springs so far toward the path of the knives 236 as to get directly under but. as they are duplicates, only one is` shown. The Aplate 240 just described serves to support that end of the blank which is nearer the knives 236, 237. The other end of the blank is sup orted by a series of spring fingers 246 see Figs. 27 and 28), these fingers being carried on across bar 247 in turn supported by arms 248 extending from hubs 249, these hubs being fast on the shaft 242 before referred to. The extreme end of the blank, in the particular machine shown, is supported (seeFig. 28) by a narrow shelf 250 mounted on brackets 250 extending inward from the frame.l vIt will be understood that there are two of theses shelves 250, one on each side of the machine, only one, however, being shown. Depending from these shelves are narrow fingers 257 which will be hereafter referred to.

In the particular machine shown, the blanks are not only severed from the twohalf webs but substantially simultaneously with the severing operation creases are formed in the blanks which determine the fold lines of the flaps h, i before described. It will be understood that the operation of the incising cuttersvbefore described forms the connected blanks in such a' Way that the flap la of one envelop is in one piece with v the flap i of the succeeding envelop. When, therefore, as the cutters 236, 237 act, they not only sever the blanks but determine the length of these flaps.

While the creasing mechanism employed. may be varied widely, in the particular construction illustrated, the cross head 227 carries two creasing blades, only one, marked 251, being shown. Secured to the bar 209 are two curved brackets 252.` These brackets serve to support shelves, only one, marked.

253,being shown. These shelves extend back.-

ward from the brackets toward theknives 236, 237. These shelves are notched out to form narrow portions 254, (see Figs. 29 to 33) to permit the operation of certain folders to be hereinafter described. The for- 'i ward edge of each shelf 253 operates in con- 24) and the body of the envelop o nection with a lcreaser blade 251 to determine I' the fold line between the flap h (see Fig. The fold line between-the flap i and the dy of each envelop is determined by a striker or creaser blade 256 (see Fig. 28 and the diagrams referred to) this blade being mounted on the pair ofarms 248 fast on the rock-shaft 242 before referred to. This rock-shaft has an operating arm 258 (see dotted lines 1n F1g. 28) carryinga roll which runs on the surlface of a cam 25,9, shown in dotted lines i the re referred to. A spring rod construction, 260, of the ordinaryy form 1s emi` ployed to hold the arm downen .the cam.

Means areprovide'd for'v turning over that flap of the envelp which lies adjacent the knives 236, 237 .f While the particular coni structionyof these means may be varied, in the machine shown, angular iap turners 261 are employedy for this purpose, these -flap turners being mounted on a shaft 262v supported in curved, brackets 252 before refred to.` Thisshaft is provided withA a pinion 263 which is in `mesh with' a rack formed on 'a bar 264, this bar extending through an opening in the bar 209 before referred to. This rack bar is secured to a fork 265, (see dotted lines in Fig. 28) which straddles a shaft 266 and is provided with a roll 267 which works on the circumference notches in the bar orfshelf`253 before referred toand come into operation afterthe cross head 227 begins its upward move ment, that is, subsequent to the cutting and creasing operations. f

xy'Means may be provided for holding the "paper in advance of the flap turner fingers so that it vwill not buckle as the flap is turned over. While these means may be varled, in the particular construction shown blades 271 are provided for this purpose,

' of a cam 268 mounted on the shaft 266. The

these bladesjfbeing mounted on arms 272,-

only one blade and arm being shown. These arms are fast; on a rock-shaft 273 and one ofthe arms (see Fig. 28) is provided with a cam roll 274 which runs on the circumference of a cam 275 mounted on the shaft 158.

the angular flap turners from springir g out again after folding,` holders, which may consist of sets of wires 277, are provided,

these wires being carried in heads 278 ;v mounted on the arms 248 before described. l

the construction shown, there is provided a ductor roll'279 mounted on a shaft 280 (see Figs. 27 and 28). This ductor roll shaft is `mounted in arms 281 fast on a rock-shaft 282 suitably supported in the is provided with a gear 287 meshing with a` gear 288 loose on the shaft 282 which also carries a loosely mounted paste carrying roll 289. The gear 288 meshes with a gear 290 on a shaft 291, this shaft supporting a paste roll 292 which runs in a paste fountain 293. The paste roll shaft 291 also carries a large gear 294 which is in mesh with a gear 295 on the shaft 266 before referred to. e It will be understood that the pasting mechanism just described operates in connection with one half the web only, and that there is or maybe employed a similar mechanism for pasting the other half of the web.V As such pasting mechanisms may be duplicates, it has not been deemed necessary to show more than one mechanism. The ductor roll 279 is in the path of the flap which will be turned up by the creasers 250, 256, so that the fia-p iscaused to strike the ductor roll by the action of the creasers. The short flap turned up by the creasers 250, 256 and Lpasted as described should now be turned down and theenvelop delivered.

While this may be accomplished in various Ways, in the particular machine shown, there is provided a delivery roll 296 which is fast onthe `shaft 266, this roll underlying the spring fingers 246 before referred to. This roll 296 may be provided with grooves 297 which will permit the Vfingers "when rocked to pass below the circumference of the roll. two presser rolls 298, 299, these rolls being mounted in spring bearings and beingprovided with gears 300, 301 which are in mesh with andy driven by -a gear 302 on the shaft 266 before referred to. "The rock-arms 248 before described are also provided' with rolls 303, these rolls overlying the delivery roll 296. Itwill be understood that the delivery mechanism just described operates in may be duplicated for the other half. 1 e. Y The operation of the creasers, folders and i delivery mechanism will be`well understood from the diagrams, Figs. 29 to 33inclusive." After the rolls 214,` 216 have advanced a'l` lengthI oftheyweb they halt while the reciproeating cutting or incising mechanism operates. During this period and whilethe web is stationary, the cross-head' 227 descends and the knives 236, 237 out of, ablank,

Coperatiiig with thislroll are being, as has been before described, partly` folded and pasted. The cross-head continues its descent, causing the creaser'251 to cooperate with the edge ofthe shelf 253, this edge forming a coperatingcreaser. The plate 240 is forced down against its spring 245 to permit the creasers tol operate. Si-

multaneously with the operation of the creaser 251, the arms 248 are rocked so as to cause the striker 256 to coperate with the` edge of the shelf 250 and'form the ycrease which determines the fold line of the flap at 1the other end of the envelop.k The action of this striker causes this flap i to turn up so as to strike the pasting roll 27 9 r Immediately thereafter, the blade 271 is thrown over so as to hold the blank and the angular turners 261 are rocked up to turn over the flap It, these turners working'through the openings in the shelf253. Bythis time, of course, the cross-head has. retreated so as to be out of the way of the turners. As the turners complete their movement,w the blades..

271 moveback out of the way so as to permit the Hap h to be turned down against the body of the ap. As 'the folders -261 complete the turning down ofthe iap 71., the

arms 248 are given a further downward movement. Just as this occurs, the ductor roll 27 9 `is moved upward out ofthe way of the flap The continued downward move ment of the arms 248, therefore, drops the r rolls 303, so that they come` in contact with the roll -296 and the blank begins to move forward. This forward movement. causes the iap z' to'be bent `down against. the edge of the shelf 250, the bending being` completed by the depending fingers 257 ItA will be understood, of course, that the downward movementA of the arms 248 referred to moves the fingersy 246 down so as .to permit the ro1ls-`303 and 296 to grip -the envelop. As the envelop moves forward .the flap Iz. runs under the holder wires 277 and 'is-thereby prevented from springing up. The envelop is 'fed forward by the actlon of the rolls 296` and 303,-until`its forward end is caught be-` tween the rolls 298 and 296, after ,which the,

arms'248 rock upward. lThe rolls 298, 299 and 296'r press the envelop, thus causing the pasted flap i tobe firmly pressed against the envelop and also still further laying the fold laletweben the body ofthe envelop' and the l n I l, connection with one half the web'v only, and

The completed envelops maybe delivered from the machine in any suitable manner. 

